On 6 August 1991 21:09, Novomoskovsk, under the command of Captain Second Rank Sergei Egorov, became the world's only submarine to successfully launch an all-missile salvo, launching 16 ballistic missiles (RSM-54) of total weight of almost 700 tons at an interval of several seconds (operation code name "Behemoth-2"). The first and the last missiles hit their targets successfully, while the others were self-destroyed in the air according to the plan. This operation was considered by the Soviet Navy as a part of possible nuclear war scenario ("Dress rehearsal of the Apocalypse") and experimentally confirmed the technical possibility of a safe underwater all-missile salvo.